CME-CME tunnel and Intercomm

[maloumar1234]

Hello,

I was wondering if this scenario is possible.

Customer wants to do the following:

Site1 2801 CCME

Site2 1760 CCME

We will have a vpn tunnel over the internet between the two sites.

Can someone from Site1 intercomm another person at site2 over the vpn tunnel?

Intercomm:phone-to-phone

Thanks

[andrew.riley]

I haven't tested this across two CME systems; but in theory.

1) On site2 setup intercom per CME instructions

2) On site1 setup a speed dial to the intercom number configured at site2

3) Create a VOIP dial peer on site1 with a 'destination-pattern' of the intercom range assigned to site2

From site 1 you should be able to dial the intercom DN assigned to site2 via the VOIP dialpeer.

I have tested this with phones on a local CME, and you can dial the intercome DN directly, so extending this over the WAN via VOIP dialpeer should be the same concept.

Make sure your VPN tunnel is configured to route accordingly.

[andrew.riley · Accepted solution]

I gave it a quick test with SRST to CME and it worked!!! Should be the same for CME to CME

CME router Config

-------------------

telephony-service

max-ephones 20

max-dn 10

ip source-address 10.92.1.253 port 2000

create cnf-files version-stamp Jan 01 2002 00:00:00

max-conferences 4

!

!

ephone-dn 1 dual-line

number 3000

!

!

ephone-dn 2

number 3001

!

!

ephone-dn 3

number 3003

!

!

ephone-dn 9

number 3111

intercom 3110 label "phone1"

!

!

ephone-dn 10

number 3110

intercom 3111 label "phone2"

!

!

ephone 1

mac-address 000D.65EC.C368

button 1:1 2:10

!

!

!

ephone 2

mac-address 000D.65EC.C3D9

button 1:2 2:9

SRST Config

-------------

dial-peer voice 3000 voip

destination-pattern 3...

session target ipv4:10.92.1.253

codec g711ulaw

!